NEW YORK (Reuters Health) - Pregnant women with a history of pregnancy-related diabetes, also called gestational diabetes, have a good chance of developing the condition again, suggests a large new study.

NEW YORK (Reuters Health) - Children who live in damp, water-damaged homes may be more likely than other kids to develop nasal allergies, a new study suggests.

NEW YORK (Reuters Health) - When professional athletes in sports like football and rugby are injured, they commonly get injections of pain-numbing anesthetics to help them stay in the game. Now a new study suggests that, while safety concerns remain, most athletes may not suffer any long-term harm from the practice.

GENEVA (Reuters) - Eastern Africa is free of polio again, with four countries -- Ethiopia, Kenya, Sudan and Uganda -- having reported no cases of the crippling disease for more than a year, U.N. and other aid agencies said Friday.

HONG KONG (Reuters) - Calcium supplements, which many people consume hoping to ward off osteoporosis, may increase the risk of heart attack by as much as 30 percent, researchers reported Friday.

WASHINGTON (Reuters) - Doctors may be able to watch for kidney injury and protect patients by looking for protein in urine, researchers reported on Thursday.

WASHINGTON (Reuters) - Overweight volunteers who took Orexigen's experimental drug Contrave, designed to reduce cravings, lost about 13 pounds (6 kg) over a year, U.S. researchers reported on Thursday.

WASHINGTON (Reuters) - Rabbits implanted with artificial bones re-grew their own joints, complete with cartilage, researchers reported on Thursday.

NEW YORK (Reuters Health) - San Francisco sends out seven ambulances in response to people thought to be in cardiac or respiratory arrest for every one person that is actually in cardiac arrest, according to a new study of the city's Emergency Medical Dispatch system.

NEW YORK (Reuters) - In the city that never sleeps there is one increasingly busy nocturnal resident who New York wants to evict -- the bedbug.